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Ask Mobil Archive -
Rotary Engines
DateQuestionAnswer
12/27/2006
Creamy Substance on Dipstick from Rotary Engine
When checking the oil level I found the dipstick had a white creamy like substance on it.  I phoned the dealer who told me this was normal for a rotary engine. I asked if any seals or gaskets had gone...
The only time we see a white, creamy substance is with oil in the presence of excess water.  The white substance is due to the oil forming an emulsion with water.  Have you had to add coolant to your ...
08/21/2006
Using Mobil 1 in a Mazda Rotary Engine
I have a 2005 Mazda RX-8. This has a rotary engine, which injects oil into its intake path. Can I use Mobil 1 without risk of incomplete oil burn and or buildup?
Mazda does not recommend the use of synthetic oils in its rotary engines. To help maintain your vehicle's warranty coverage, we suggest that you follow your car builder's engine oil recommendation.
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